We regularly take my husbands prized posession to Alarmtronics (on 84th Street) for stereo, alarm, etc work. They are great! They go above and beyond your expectations and even fixed a piece on my husbands door that makes the light go on without charging us. It may have only been a $5 part but it was such a surprise for them to say "we saw it was broke so we went ahead and took care of it". I think they are great!